<template>
  <div :style="styleObj">
    <v-chart :options="options" autoresize />
  </div>
</template>
<script>
import '../../../../../../node_modules/echarts/map/js/china.js'
var GZData = [
  [
    {
      name: '广州'
    },
    {
      name: '福州',
      value: 95
    }
  ],
  [
    {
      name: '广州'
    },
    {
      name: '太原',
      value: 90
    }
  ],
  [
    {
      name: '广州'
    },
    {
      name: '长春',
      value: 80
    }
  ],
  [
    {
      name: '广州'
    },
    {
      name: '重庆',
      value: 70
    }
  ],
  [
    {
      name: '广州'
    },
    {
      name: '西安',
      value: 60
    }
  ],
  [
    {
      name: '广州'
    },
    {
      name: '成都',
      value: 50
    }
  ],
  [
    {
      name: '广州'
    },
    {
      name: '常州',
      value: 40
    }
  ],
  [
    {
      name: '广州'
    },
    {
      name: '北京',
      value: 30
    }
  ],
  [
    {
      name: '广州'
    },
    {
      name: '北海',
      value: 20
    }
  ],
  [
    {
      name: '广州'
    },
    {
      name: '海口',
      value: 10
    }
  ]
]
var geoCoordMap = {
  上海: [121.4648, 31.2891],
  东莞: [113.8953, 22.901],
  东营: [118.7073, 37.5513],
  中山: [113.4229, 22.478],
  临汾: [111.4783, 36.1615],
  临沂: [118.3118, 35.2936],
  丹东: [124.541, 40.4242],
  丽水: [119.5642, 28.1854],
  乌鲁木齐: [87.9236, 43.5883],
  佛山: [112.8955, 23.1097],
  保定: [115.0488, 39.0948],
  兰州: [103.5901, 36.3043],
  包头: [110.3467, 41.4899],
  北京: [116.4551, 40.2539],
  北海: [109.314, 21.6211],
  南京: [118.8062, 31.9208],
  南宁: [108.479, 23.1152],
  南昌: [116.0046, 28.6633],
  南通: [121.1023, 32.1625],
  厦门: [118.1689, 24.6478],
  台州: [121.1353, 28.6688],
  合肥: [117.29, 32.0581],
  呼和浩特: [111.4124, 40.4901],
  咸阳: [108.4131, 34.8706],
  哈尔滨: [127.9688, 45.368],
  唐山: [118.4766, 39.6826],
  嘉兴: [120.9155, 30.6354],
  大同: [113.7854, 39.8035],
  大连: [122.2229, 39.4409],
  天津: [117.4219, 39.4189],
  太原: [112.3352, 37.9413],
  威海: [121.9482, 37.1393],
  宁波: [121.5967, 29.6466],
  宝鸡: [107.1826, 34.3433],
  宿迁: [118.5535, 33.7775],
  常州: [119.4543, 31.5582],
  广州: [113.5107, 23.2196],
  廊坊: [116.521, 39.0509],
  延安: [109.1052, 36.4252],
  张家口: [115.1477, 40.8527],
  徐州: [117.5208, 34.3268],
  德州: [116.6858, 37.2107],
  惠州: [114.6204, 23.1647],
  成都: [103.9526, 30.7617],
  扬州: [119.4653, 32.8162],
  承德: [117.5757, 41.4075],
  拉萨: [91.1865, 30.1465],
  无锡: [120.3442, 31.5527],
  日照: [119.2786, 35.5023],
  昆明: [102.9199, 25.4663],
  杭州: [119.5313, 29.8773],
  枣庄: [117.323, 34.8926],
  柳州: [109.3799, 24.9774],
  株洲: [113.5327, 27.0319],
  武汉: [114.3896, 30.6628],
  汕头: [117.1692, 23.3405],
  江门: [112.6318, 22.1484],
  沈阳: [123.1238, 42.1216],
  沧州: [116.8286, 38.2104],
  河源: [114.917, 23.9722],
  泉州: [118.3228, 25.1147],
  泰安: [117.0264, 36.0516],
  泰州: [120.0586, 32.5525],
  济南: [117.1582, 36.8701],
  济宁: [116.8286, 35.3375],
  海口: [110.3893, 19.8516],
  淄博: [118.0371, 36.6064],
  淮安: [118.927, 33.4039],
  深圳: [114.5435, 22.5439],
  清远: [112.9175, 24.3292],
  温州: [120.498, 27.8119],
  渭南: [109.7864, 35.0299],
  湖州: [119.8608, 30.7782],
  湘潭: [112.5439, 27.7075],
  滨州: [117.8174, 37.4963],
  潍坊: [119.0918, 36.524],
  烟台: [120.7397, 37.5128],
  玉溪: [101.9312, 23.8898],
  珠海: [113.7305, 22.1155],
  盐城: [120.2234, 33.5577],
  盘锦: [121.9482, 41.0449],
  石家庄: [114.4995, 38.1006],
  福州: [119.4543, 25.9222],
  秦皇岛: [119.2126, 40.0232],
  绍兴: [120.564, 29.7565],
  聊城: [115.9167, 36.4032],
  肇庆: [112.1265, 23.5822],
  舟山: [122.2559, 30.2234],
  苏州: [120.6519, 31.3989],
  莱芜: [117.6526, 36.2714],
  菏泽: [115.6201, 35.2057],
  营口: [122.4316, 40.4297],
  葫芦岛: [120.1575, 40.578],
  衡水: [115.8838, 37.7161],
  衢州: [118.6853, 28.8666],
  西宁: [101.4038, 36.8207],
  西安: [109.1162, 34.2004],
  贵阳: [106.6992, 26.7682],
  连云港: [119.1248, 34.552],
  邢台: [114.8071, 37.2821],
  邯郸: [114.4775, 36.535],
  郑州: [113.4668, 34.6234],
  鄂尔多斯: [108.9734, 39.2487],
  重庆: [107.7539, 30.1904],
  金华: [120.0037, 29.1028],
  铜川: [109.0393, 35.1947],
  银川: [106.3586, 38.1775],
  镇江: [119.4763, 31.9702],
  长春: [125.8154, 44.2584],
  长沙: [113.0823, 28.2568],
  长治: [112.8625, 36.4746],
  阳泉: [113.4778, 38.0951],
  青岛: [120.4651, 36.3373],
  韶关: [113.7964, 24.7028]
}
var type = '流出'
var color = ['#a6c84c', '#ffa022', '#46bee9']
var tempData = ['广州', GZData]
var planePath =
  'path://M1705.06,1318.313v-89.254l-319.9-221.799l0.073-208.063c0.521-84.662-26.629-121.796-63.961-121.491c-37.332-0.305-64.482,36.829-63.961,121.491l0.073,208.063l-319.9,221.799v89.254l330.343-157.288l12.238,241.308l-134.449,92.931l0.531,42.034l175.125-42.917l175.125,42.917l0.531-42.034l-134.449-92.931l12.238-241.308L1705.06,1318.313z'
export default {
  name: 'WidgetMap',
  props: {
    value: Object,
    ispreview: Boolean
  },
  data() {
    return {
      options: {
        title: {
          text: '模拟迁徙',
          subtext: '数据纯属虚构',
          left: 'center',
          textStyle: {
            color: '#fff'
          }
        },
        tooltip: {
          trigger: 'item',
          formatter: function(params) {
            console.log(params)
            if (params.seriesType == 'effectScatter') {
              if ('流入' == type) {
                return (
                  type +
                  '<br>' +
                  params.data.name +
                  ' ---> ' +
                  params.seriesName +
                  '<br />人数：' +
                  params.data.value[2] +
                  '人'
                )
              } else {
                return (
                  '流出<br>' +
                  params.seriesName +
                  ' ---> ' +
                  params.data.name +
                  '<br />人数：' +
                  params.data.value[2] +
                  '人'
                )
              }
            } else if (params.seriesType == 'lines') {
              if ('流入' == type) {
                return (
                  type +
                  '<br>' +
                  params.data.toName +
                  ' ---> ' +
                  params.data.fromName +
                  '<br />人数：' +
                  params.data.value +
                  '人'
                )
              } else {
                return (
                  type +
                  '<br>' +
                  params.data.fromName +
                  ' ---> ' +
                  params.data.toName +
                  '<br />人数：' +
                  params.data.value +
                  '人'
                )
              }
            } else {
              return params.name
            }
          }
        },
        legend: {
          show: false,
          orient: 'vertical',
          top: 'bottom',
          left: 'right',
          data: ['广州'],
          textStyle: {
            color: '#fff'
          },
          selectedMode: 'single'
        },
        geo: {
          map: 'china',
          label: {
            emphasis: {
              //show: false,
              show: true,
              color: 'white'
            }
          },
          roam: true,
          itemStyle: {
            normal: {
              areaColor: '#323c48',
              borderColor: '#404a59'
            },
            emphasis: {
              areaColor: '#2a333d'
            }
          }
        },
        series: []
      },
      optionsSetup: {}
    }
  },
  computed: {
    styleObj() {
      return {
        position: this.ispreview ? 'absolute' : 'static',
        width: this.optionsStyle.width + 'px',
        height: this.optionsStyle.height + 'px',
        left: this.optionsStyle.left + 'px',
        top: this.optionsStyle.top + 'px',
        background: this.optionsSetup.background
      }
    }
  },
  watch: {
    value: {
      handler(val) {
        this.optionsStyle = val.position
      },
      deep: true
    }
  },
  created() {
    this.optionsStyle = this.value.position
  },
  mounted() {
    this.initData()
  },
  methods: {
    initData() {
      const options = this.options
      options.series.push(
        {
          name: tempData[0],
          type: 'lines',
          zlevel: 1,
          effect: {
            show: true,
            period: 6,
            trailLength: 0.7,
            color: '#fff',
            symbolSize: 3
          },
          lineStyle: {
            normal: {
              color: color[0],
              width: 0,
              curveness: 0.2
            }
          },
          data: this.convertData(tempData[1])
        },
        {
          name: tempData[0],
          type: 'lines',
          zlevel: 2,
          effect: {
            show: true,
            period: 6,
            trailLength: 0,
            symbol: planePath,
            symbolSize: 15
          },
          lineStyle: {
            normal: {
              color: color[0],
              width: 1,
              opacity: 0.4,
              curveness: 0.2
            }
          },
          data: this.convertData(tempData[1])
        },
        {
          name: tempData[0],
          type: 'effectScatter',
          coordinateSystem: 'geo',
          zlevel: 2,
          rippleEffect: {
            brushType: 'stroke'
          },
          label: {
            normal: {
              show: true,
              position: 'right',
              formatter: '{b}'
            }
          },
          symbolSize: function(val) {
            return val[2] / 8
          },
          itemStyle: {
            normal: {
              color: color[0]
            }
          },
          data: tempData[1].map(function(dataItem) {
            return {
              name: dataItem[1].name,
              value: geoCoordMap[dataItem[1].name].concat([dataItem[1].value])
            }
          })
        }
      )
      this.options = options
    },
    convertData(data) {
      var res = []
      for (var i = 0; i < data.length; i++) {
        var dataItem = data[i]
        var fromCoord = geoCoordMap[dataItem[0].name]
        var toCoord = geoCoordMap[dataItem[1].name]
        if ('流入' == type) {
          fromCoord = geoCoordMap[dataItem[1].name]
          toCoord = geoCoordMap[dataItem[0].name]
        }
        if (fromCoord && toCoord) {
          res.push({
            fromName: dataItem[0].name,
            toName: dataItem[1].name,
            coords: [fromCoord, toCoord],
            value: dataItem[1].value
          })
        }
      }
      return res
    }
  }
}
</script>
<style lang="scss" scoped>
.echartMap {
  width: 100%;
  height: 100%;
}
.echarts {
  width: 100%;
  height: 100%;
  overflow: hidden;
}
</style>
